The basic story involves Loveday's struggle to keep the estate Nancherrow in the family after the death of her father.
With the help of a feisty aristocratic woman, a working-class Scotland Yard inspector hunts for a serial killer of young women in Victorian London.
Set during the 1960s in the fictional North Yorkshire village of Aidensfield, this enduringly popular series interweaves crime and medical storylines.